1.	Simplify 1 Simplify the following expression: $$ {\left(1 + 5\right)}^{2} - \left((-(-5)) + -6 - -1\right) $$ Correct Answer $$ 36$$ or 36.0000

2.	Simplify 2 Simplify the following expression: $$ {\left(\frac{-4 - 4}{6 - -5}\right)}^{2\left(3 - 4\right)} $$ Correct Answer $$ {\left(\frac{8}{11}\right)}^{-2}$$ or 1.89062

3.	Fractions 1 Simplify the following expression: $$ \frac{-1}{6} - \frac{5}{3} $$ Correct Answer $$ \frac{-11}{6}$$ or -1.8333333333333335

4.	Fractions 2 Simplify the following expression: $$ \frac{2}{2}\frac{5}{4} $$ Correct Answer $$ \frac{5}{4}$$ or 1.25

5.	Significant figures 1. Write the following to 3 significant figures: 0.00062727540 Correct Answer 0.000627 or $$6.27\times10^{-4}$$ 2. Write the following to 3 significant figures: 236.12858 Correct Answer 236 or $$2.36\times10^{2}$$

6.	Standard Form 1. Write the following in standard form to 4 significant digits: 0.000695495 Correct Answer $$6.955\times10^{-4}$$ 2. Write the following in standard form to 5 significant digits: 205.340 Correct Answer $$2.0534\times10^{2}$$

7.	Significant figures 1. Write the following in preferred standard form to 2 significant digits: 0.0001823 Correct Answer $$180\times10^{-6}$$ 2. Write the following in preferred standard form to 3 significant digits: 0.000054508 Correct Answer $$54.5\times10^{-6}$$

8.	Simplify 2 Simplify the following expression: $$ {\left(-3 - 3\right)}^{2} + \left(1 + 3\right)\left(3 - 1\right) $$ Correct Answer $$ 44$$ or 44.0000

9.	Simplify 1 Simplify the following expression: $$ 2\left(3 - 5\right)\left(3(-5) - \left(2 + 3\right)\right) $$ Correct Answer $$ 80$$ or 80.0000

10.	Simplify 2 Simplify the following expression: $$ \frac{{\left(1 + 2\right)}^{2}}{5\times1 - \frac{-4}{6}} $$ Correct Answer $$ \frac{27}{17}$$ or 1.58824